apply plugin: 'eclipse'
           import org.gradle.plugins.ide.eclipse.model.BuildCommand

           eclipse.project {
               natures += ['nature.a']
               buildCommand 'command1', argumentKey: 'arg'
           }
        """

        when:
        EclipseProject project = loadToolingModel(EclipseProject)

        then:
        project.projectNatures.size() == 2

    }

    def "runs actions when command is run"() {
        Runnable command = Mock()

        when:
        coordinator.runCommand(command, "command")

        then:
        1 * onStartCommand.run()
        1 * command.run()
        1 * onFinishCommand.run()
        0 * _._
    }

    def "runs actions when more commands are run"() {
        Runnable command = Mock()
        Runnable command2 = Mock()

 */
public class Command extends Message implements Serializable {
    private final UUID identifier;
    private final byte[] token;

    public Command(UUID identifier, byte[] token) {
        this.identifier = identifier;
        this.token = token;
    }

    /**
     * Returns the authentication token for this command.
     */
    public byte[] getToken() {
        return token;

	Flag flag.FlagSet

	// CustomFlags indicates that the command will do its own
	// flag parsing.
	CustomFlags bool

	// Commands lists the available commands and help topics.
	// The order here is the order in which they are printed by 'go help'.
	// Note that subcommands are in general best avoided.
	Commands []*Command
}

var Go = &Command{
	UsageLine: "go",

     *
     * @return Created cancellation token associated with currently running command or an arbitrary instance if no command is running.
     */
    BuildCancellationToken getCancellationToken();

    /**
     * Runs the given long running command. No more than 1 command may be running at any given time.
     *
     * @param command The command to run

	commandsTree := trie.NewTrie()

	// registerCommand registers a cli command.
	registerCommand := func(command cli.Command) {
		commands = append(commands, command)
		commandsTree.Insert(command.Name)
	}

	findClosestCommands := func(command string) []string {
		var closestCommands []string
		closestCommands = append(closestCommands, commandsTree.PrefixMatch(command)...)

		base.Exit()
	}

	if len(cmd.Commands) > 0 {
		PrintUsage(os.Stdout, cmd)
	} else {
		tmpl(os.Stdout, helpTemplate, cmd)
	}
	// not exit 2: succeeded at 'go help cmd'.
	return
}

var usageTemplate = `{{.Long | trim}}

Usage:

	{{.UsageLine}} <command> [arguments]

The commands are:
{{range .Commands}}{{if or (.Runnable) .Commands}}
	{{.Name | printf "%-11s"}} {{.Short}}{{end}}{{end}}

			// If we are racing with another go command and do bin/go first,
			// then the check of bin/go above might succeed, the other go command
			// would skip its own mode-setting, and then the go command might
			// try to run a tool before we get to setting the bits on pkg/tool.
			// Setting pkg/tool before bin/go avoids that ordering problem.
			// The only other tool the go command invokes is gofmt,

	seenCommands := make(map[*cobra.Command]bool)
	var commandStack []*cobra.Command

	commandStack = append(commandStack, rootCmd)

	for len(commandStack) > 0 {
		n := len(commandStack) - 1
		curCmd := commandStack[n]
		commandStack = commandStack[:n]
		seenCommands[curCmd] = true
		for _, command := range curCmd.Commands() {
			if !seenCommands[command] {
				commandStack = append(commandStack, command)

// and test commands:
//
//	-C dir
//		Change to dir before running the command.
//		Any files named on the command line are interpreted after
//		changing directories.
//		If used, this flag must be the first one in the command line.
//	-a
//		force rebuilding of packages that are already up-to-date.
//	-n
//		print the commands but do not run them.
//	-p n